Rainbow-electronics AT42QT1040 Manual de usuario descargar pdf (Pagina 13)

9524A–AT42–03/09

AT42QT1040

5. Specifications

5.1 Absolute Maximum Specifications

5.2 Recommended Operating Conditions

5.3 DC Specifications

Vdd -0.5 to +6.0V

Max continuous pin current, any control or drive pin ±10 mA

Voltage forced onto any pin -0.5V to (Vdd + 0.5) Volts

CAUTION: Stresses beyond those listed under Absolute Maximum Specifications may cause permanent damage to the

device. This is a stress rating only and functional operation of the device at these or other conditions beyond those

indicated in the operational sections of this specification is not implied. Exposure to absolute maximum specification

conditions for extended periods may affect device reliability

Operating temperature -40°C to +85°C

Storage temperature -55°C to +125°C

Vdd 1.8V to 5.5V

Supply ripple + noise ±20 mV maximum

Cx capacitance per key 2 to 20 pF

Vdd = 5.0V, Cs = 4.7 nF, Ta = recommended range, unless otherwise noted

Parameter Description Min Typ Max Units Notes

Vil Low input logic level 0.5V – 0.3V V

Vih High input logic level 0.6 Vdd Vdd Vdd + 0.5V V

Vol Low output voltage 0 – 0.7 V 10 mA sink current

Voh High output voltage 0.8 Vdd – Vdd V 10 mA source current

Iil Input leakage current – <0.05 1 µA

Rrst Internal RST

pull-up resistor 20 – 50 k

1 2 ... 8 9 10 11 12 13 14 15 16 17 18

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Rainbow-electronics AT42QT1040 Manual de usuario Pagina 13